Question

我遇到了JSON反序列化的问题。我创建了一个C＃程序，并使用了Json.NET。

我必须反序列化的JSON对象是：

{
   "modifyDate": 1400648078000,
   "champions": [
      {
      "id": 143,
     "stats": {
        "totalDeathsPerSession": 7,
        "totalSessionsPlayed": 1,
        "totalDamageTaken": 19377,
        "totalQuadraKills": 0,
        "totalTripleKills": 0,
        "totalMinionKills": 38,
        "maxChampionsKilled": 4,
        "totalDoubleKills": 0,
        "totalPhysicalDamageDealt": 4862,
        "totalChampionKills": 4,
        "totalAssists": 17,
        "mostChampionKillsPerSession": 4,
        "totalDamageDealt": 53289,
        "totalFirstBlood": 0,
        "totalSessionsLost": 0,
        "totalSessionsWon": 1,
        "totalMagicDamageDealt": 46696,
        "totalGoldEarned": 12787,
        "totalPentaKills": 0,
        "totalTurretsKilled": 0,
        "mostSpellsCast": 0,
        "maxNumDeaths": 7,
        "totalUnrealKills": 0
     }
  },
  {
     "id": 115,
     "stats": {
        "totalDeathsPerSession": 8,
        "totalSessionsPlayed": 1,
        "totalDamageTaken": 18926,
        "totalQuadraKills": 0,
        "totalTripleKills": 0,
        "totalMinionKills": 219,
        "maxChampionsKilled": 4,
        "totalDoubleKills": 0,
        "totalPhysicalDamageDealt": 8912,
        "totalChampionKills": 4,
        "totalAssists": 6,
        "mostChampionKillsPerSession": 4,
        "totalDamageDealt": 170050,
        "totalFirstBlood": 0,
        "totalSessionsLost": 1,
        "totalSessionsWon": 0,
        "totalMagicDamageDealt": 161137,
        "totalGoldEarned": 10950,
        "totalPentaKills": 0,
        "totalTurretsKilled": 0,
        "mostSpellsCast": 0,
        "maxNumDeaths": 8,
        "totalUnrealKills": 0
     }
   }, ...

这是一个复杂的对象。

表示此对象的我的C＃类是：

class StatRankedJoueur
{

    private double modifyDate;
    public double ModifyDate
    {
        get { return modifyDate; }
        set { modifyDate = value; }
    }


    private int _summonerId;
    public int SummonerId
    {
        get { return _summonerId; }
        set { _summonerId = value; }
    }

    private Dictionary<int, Dictionary<String, double>> champions;
    public Dictionary<int, Dictionary<String, double>> Champions
    {
        get
        {
            return champions;
        }

        set
        {

            champions = value;
        }
    }
}

反序列化：

StatRankedJoueur values = JsonConvert.DeserializeObject<StatRankedJoueur>(response);

但是当我编译时我遇到了这个问题：

无法将当前JSON数组（例如[1,2,3]）反序列化为类型'System.Collections.Generic.Dictionary 2[System.Int32,System.Collections.Generic.Dictiona>y 2 [System.String，System.Double]]'，因为类型需要要正确反序列化的JSON对象（例如＆gt;＆gt; {“name”：“value”}）。

我发现这个错误是这个网站，但解决方法是改变这一行：

 StatRankedJoueur values = JsonConvert.DeserializeObject<StatRankedJoueur>(response);

由：

var list = JsonConvert.DeserializeObject<List<KeyValuePair<string,List<KeyValuePair<string, string>>>> >(json);

问题是我没有“对象”列表是我的JSON。那怎么办呢？

Answer 1

评论指出，您的JSON不包含词典。试试这个：

class StatRankedJoueur
{

    private double modifyDate;
    public double ModifyDate
    {
        get { return modifyDate; }
        set { modifyDate = value; }
    }


    private int _summonerId;
    public int SummonerId
    {
        get { return _summonerId; }
        set { _summonerId = value; }
    }

    private Champion[] champions;
    public Champion[] Champions
    {
        get
        {
            return champions;
        }

        set
        {

            champions = value;
        }
    }


}

public class Champion
{
    public int id { get; set; }
    public Stats stats { get; set; }
}

public class Stats
{
    public int totalDeathsPerSession { get; set; }
    //etc
}

Answer 2

你假设JSON.NET知道将id放入你的字典的int key字段和stat属性作为内部字典键...它可能无法推断所有...

适用于您的JSON的类定义之一是：（我知道它是骆驼套装而不是pascal套管......使用JSON属性进行更改。）

public class Stats
{
    public int totalDeathsPerSession { get; set; }
    public int totalSessionsPlayed { get; set; }
    public int totalDamageTaken { get; set; }
    public int totalQuadraKills { get; set; }
    public int totalTripleKills { get; set; }
    public int totalMinionKills { get; set; }
    public int maxChampionsKilled { get; set; }
    public int totalDoubleKills { get; set; }
    public int totalPhysicalDamageDealt { get; set; }
    public int totalChampionKills { get; set; }
    public int totalAssists { get; set; }
    public int mostChampionKillsPerSession { get; set; }
    public int totalDamageDealt { get; set; }
    public int totalFirstBlood { get; set; }
    public int totalSessionsLost { get; set; }
    public int totalSessionsWon { get; set; }
    public int totalMagicDamageDealt { get; set; }
    public int totalGoldEarned { get; set; }
    public int totalPentaKills { get; set; }
    public int totalTurretsKilled { get; set; }
    public int mostSpellsCast { get; set; }
    public int maxNumDeaths { get; set; }
    public int totalUnrealKills { get; set; }
}

public class Champion
{
    public int id { get; set; }
    public Stats stats { get; set; }
}

public class RootObject
{
    public long modifyDate { get; set; }
    public List<Champion> champions { get; set; }
}

您可以在此处快速为JSON生成C＃类：http://json2csharp.com/

Answer 3

添加一些类来表示您从JSON获得的结构。

public class StatRankedJoueur
{
    public double ModifyDate { get; set; }
    public int SummonerId { get; set; }
    public IEnumerable<Champion> Champions { get; set; }
}

public class Champion
{
    public int id { get; set;}
    public Stats stats { get; set;}
}

public class Stats
{
    public double totalDeathsPerSession { get; set; }
    public double totalSessionsPlayed { get; set; }
    public double totalDamageTaken { get; set; }
    public double totalQuadraKills { get; set; }
    public double totalTripleKills { get; set; },
    public double totalMinionKills { get; set; }
    public double maxChampionsKilled { get; set; }
    public double totalDoubleKills { get; set; }
    public double totalPhysicalDamageDealt { get; set; }
    public double totalChampionKills { get; set; }
    public double totalAssists { get; set; }
    public double mostChampionKillsPerSession { get; set; }
    public double totalDamageDealt { get; set; }
    public double totalFirstBlood { get; set; }
    public double totalSessionsLost { get; set; }
    public double totalSessionsWon { get; set; }
    public double totalMagicDamageDealt { get; set; }
    public double totalGoldEarned { get; set; }
    public double totalPentaKills { get; set; }
    public double totalTurretsKilled { get; set; }
    public double mostSpellsCast { get; set; }
    public double maxNumDeaths { get; set; }
    public double totalUnrealKills { get; set; }
}

如何正确反序列化我的JSON对象？

3 个答案: